Update README

README.rst

@@ -9,16 +9,53 @@ Powerline
        :target: `travis-build-status`_
        :alt: Build status
 
-This is the upcoming version of Powerline, implemented in Python. The 
-project is currently in a stable beta and almost ready for release.
+.. _travis-build-status: https://travis-ci.org/Lokaltog/powerline
+
+**Powerline is a statusline plugin for vim, and provides statuslines and 
+prompts for several other applications, including zsh, bash, tmux, IPython, 
+Awesome and Qtile.**
+
+Features
+--------
+
+* **Extensible and feature rich, written in Python.** Powerline was 
+  completely rewritten in Python to get rid of as much vimscript as 
+  possible. This has allowed much better extensibility, leaner and better 
+  config files, and a structured, object-oriented codebase with no mandatory
+  third-party dependencies other than a Python interpreter.
+* **Stable and testable code base.** Using Python has allowed unit testing 
+  of all the project code. The code is tested to work in Python 2.6+ and 
+  Python 3.
+* **Support for prompts and statuslines in many applications.** Originally 
+  created exclusively for vim statuslines, the project has evolved to 
+  provide statuslines in tmux and several WMs, and prompts for shells like 
+  bash/zsh and other applications. It's simple to write renderers for any 
+  other applications that Powerline doesn't yet support.
+* **Configuration and colorschemes written in JSON.** JSON is 
+  a standardized, simple and easy to use file format that allows for easy 
+  user configuration across all of Powerline's supported applications.
+* **Fast and lightweight, with daemon support for even better performance.**
+  Although the code base spans a couple of thousand lines of code with no 
+  goal of "less than X lines of code", the main focus is on good performance 
+  and as little code as possible while still providing a rich set of 
+  features. The new daemon also ensures that only one Python instance is 
+  launched for prompts and statuslines, which provides excellent 
+  performance.
+
+*But I hate Python / I don't need shell prompts / this is just too much 
+hassle for me / what happened to the original vim-powerline project / …*
+
+You should check out some of the Powerline derivatives. The most lightweight
+and feature-rich alternative is currently Bailey Ling's `vim-airline 
+<https://github.com/bling/vim-airline>`_ project.
+
+------
 
 * Consult the `documentation 
   <https://powerline.readthedocs.org/en/latest/>`_ for more information and 
   installation instructions.
 * Check out `powerline-fonts <https://github.com/Lokaltog/powerline-fonts>`_ 
-  for pre-patched versions of popular coding fonts.
-
-.. _travis-build-status: https://travis-ci.org/Lokaltog/powerline
+  for pre-patched versions of popular, open source coding fonts.
 
 Screenshots
 -----------